Double bolt lock means



July 26, 1960 E. GoTAY DOUBLE BOLT Loox MEANS Filed April l0, 1958 INVENTOR. ERASMO GOTAY AWOEMSLV DOUBLE BOLT LOCK MEANS Erasmo Gotay, S21 W. 122ml St., New York, N.Y.

Filed Apr. 10, 195s, ser. No. 721,596 1 claim. (ci. 1o- 1318) This invention concerns a locking device for doors in which are provided two or more sliding bolts for reinforcing the closure of the door.

It is a principal object to provide a locking device in which at -least two bolts are operated by gear means simultaneously so that the -bolts engage in brackets oppo site sides of a doorway. It is a further object to provide a multiple-bolt locking device in which one or more bolt bars are operated byr gear means and one or more other 4bolt bars are operated by a cam means for engaging various parts of a doorway.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is an elevational view of a door and locking device embodying the invention.

Fig. 2 is an enlarged sectional view taken on lines 2 2 of Fig. l.

Fig. 2A is a sectional view on an enlarged scale showing a step in the operation of the locking device.

Fig. 3 is a sectional view taken through the center of the handle of the locking device.

Fig. 4 is an elevational Iview of the locking device with cover plate removed.

Fig. 5 is an elevational view of another form of locking device according to the invention.

Fig. 6 is a sectional view taken on lines 6 6 of Fig. 5.

Fig. 7 is an elevational view on an enlarged scale of a portion of the locking device of Figs. 5 and 6.

In Figs. l to 3 there is shown a rectangular door 10 mounted in a door frame 11. Hinges 12 pivotally support the door on the door frame Mounted on the door is the locking device 16, embodying the present invention.

The locking device includes a rectangular channelshaped base plate 17 attached to the door by screws 15. A similarly shaped cover plate 18 is mounted on the base plate. The two plates are secured together by Screws 19 passing through apertures in cover plate 18 and threaded in holes in the Ibase plate thereby providing a housing. In the door is formed a cylindrical bore or opening 22 as best shown in Figs. 2, 2A and 3. In this bore is seated an internally threaded cylinder 23 having a ange 24. The flange seats on shoulder 25 formed at the inner end of bore 22. `An externally threaded cylinder 26 is removably threaded in cylinder 23. This cylinder has an external ange 27 which abuts the outer side of the door around bore 22. Rotatably mounted in the cylinder 26 is another generally cylindrical core member 2S. This core member has an external flange 3i@ juxtaposed to ange 27. The body of member 28 is formed with circular grooves 31. Into these grooves extend setscrews 33. The setscrews are inserted radially through cylinder 26 and remain xed therein into Ywhich key 36 may be inserted for turning member 28. The inner end of member 28 terminates in a diametrally disposed flat projecting lug 37. Plate 17 is formed with an aperture through which extends the inner end of cylinder 26 and lug 37. Axially aligned with the cylinders 23 and 26 and with member 28 is a spul` gear 40.' This gear has a pair of spaced projecting fingers or prongs 41 at one side thereof engaging the lug 37 therebetween. A stub shaft 42 is formed axially on the other side of gear 40 and extends through a hole 48 in plate 18. This shaft has a rectangular stud 43 `on which is mounted the knob handle 44. A screw 45 secures the handle on the stud.

It will be apparent that the gear 40 is journaled in hole 48 of plate 13 and the inner end of cylinder 2,6. It can be rotated either by turning handle 44 or by inserting a key 36 in the keyway 35 and turning the key. The teeth of gear 4@ are engaged in teeth Li6 and 47 of two flat bar bolts Sil and 51. Bar S is a short member mounted near the top of the plate 17 and is arranged to slide transversely in an outer space dehned between plates 17 and 1S. Stop member 49 secured by screws 29 to plate 17 limits inward movement of bar Sil. Bar S1 is a. longer member which extends across the door 1t) and overlaps frame 11 when the bar is fully extended. The catch or bracket plates 52 and 53 on opposite sides of the irme respectively engage the free ends of bolt bars 50 and 51 when they are full-y extended. A guide plate S5 is mounted on the door for guiding and supporting bar 51. Stop member 21 limits inward movement or bar 51.

When the door is closed, knob handle d4 or key 36 may be used to extend and retract both bars 5b and 51. When ythe free ends of bar 50 and l51 are engaged in their respective clamp plates 52 and 53, the door is securely closed. The free ends 6i) of the several bars have a thickness greater than that of the body of the door, as clearly shown in Fig. 2, for providing a reinforced closure of the door.

In Figs. 5, 6 and 7, is shown a modification of the invention in which bolt bars 61 and 62 are disposed Vertically perpendicularly to bars 50 and 51. These vertical bars 61 and 62 have curved grooved ends 6d which slide on the enlarged cam portion 65 of bar 51. This eammed portion has straight horizontal sections 66 and 66 and curved sections 67 and 67. The curved sections are smoothly continuous with .the top and bottom edges of bar 51.

When the bar 51 is extended to become engaged with bracket 53, the bars 61 and 62 ride over the curved cammed portions 67 and 67' while respectivelyV moving upwardly and downwardly until the straight portions 66 and 66 are reached. In these positions the outer ends of bars 61 and 62 are respectively engaged in catch plate 7@ at the top of the door frame and'in a socket 71 located in the floor '72. Springs 74 and 75 are secured between anchor pins 76 mounted on the door and short arms 77 extending laterally from bars 61 and 62,.

- These springs are tensioned when the bars are extended simultaneously to bar and* bolt the door. n tion doubles the security provided by the lock means shown in Fig. ,-1. Guide plates 78 andv 79 are provided for guiding movements of bars 61 and 62. Each of the bracket. nietes, and guide plates is secured to, the door byA a nluralti/.Dt ccuntersunk, screws 8.0,.,

Y if desires, the rocking device ine-indemnes. 1118 barsv t?, 51., 61 and 61 may be enclosed within. thel door if the door has. a hollow double-Walled structure.

In` Fig. 7, bars 61 and 6.2 are shown4 disengaged from the cammed portion 65 of' harA 51. This is. the normal'` retracted position of bars; 611 and' 62;. When the. bars 6,1' and' 62are extended they assume thepositionashownt in Fig, 5 in engagement with catch plate 7.0,audsocl'cet 71.

While Ijjhave illustrated'and' described the preferred ernbod'imentsA of' my inyention,l it is to., be` understood' that I' d'o not'Y limit myselfi to the precise constructions herein,

disclosed' and that various changes and" modifications may be made within the scope of the invention as, d'ened in the,

bars being in alignment, the opposed' edges ofthe bars Qn the inner end. thereof. having teeth, a shaft journall'ed' in one. of the opposed" apertures in the housing, a spur gear on the inner end of said shaft inside the housing, the teeth. of said gear in mesh with,l the teeth. on the flat This construcbars, a handl'eon the shaft outside the housingl for turning the shaft, a cylinder rotatably mounted in the opening in the door, means of' connection between the cylinder and gear whereby movementl of the cylinder is imparted to the gear, said means of connection including spaced projecting prongs on the` gear and a projecting lug on the cylinder interlocked 'with the prongs, said cylinder having a central keyway thereinfor receiving a key for turning the cylinder, one of said at bars having an enlarged cam; surface. intermediate' itsr ends, a pair of longitudinally aligned flat bars slidably mounted on the door; said 'latter-` bars. being verticali and? perpendicularly arranged relatiue. to the. parallel at bars with their opposed ends inl interlocking relation with the cammed surface on said onefat' bau` so.. than movement of said one flat bar is imparted to said longitudinally aligned ilat bars, and means beyond top, bottom, and opposite lateral edges of the door for engaging ends of said bars, whereby turning oi said. handle. in one direction eiects simultaneous projection of allof said harsbeyondthe top, bottom and' opposite lateral4 edges of. the door to engagein said means respectively, and turning the. handle in an opposite direction retracts all of said bars simultaneously from said means.

ReferencesCited. in theiile of this' patent UNITED: STATES PATENTS Y 932,383' Furman et al. Aug. 2.4, 1909.

2,125,227 Hammarle Iuly 26, 1938 2,261,353 Fedele Nov. 4,v 1941 V2,486,460 Bonenberger Nov. l, 1949.

'25,787,154 Wesberry Apr. 2, 1957 FGREIGN PATENTS 585,442V Great Britain .Feb. 6, 1947. 

